Seiko Cronos Waterproof J13046 from 1962

For sale is a Seiko J13046, a standout piece from the Seiko Cronos Waterproof collection, marking Seiko's inaugural venture into water-resistant watches.

Unveiled in December 1959, the Seiko Cronos Waterproof was a significant milestone in the development of waterproof and shockproof watches. This launch followed closely after the release of the Citizen Parawater, Japan’s first waterproof watch, introduced in July 1959.

The Seiko Cronos Waterproof was engineered with a specially constructed case and uniquely designed glass, capable of withstanding water pressure up to 50 meters. Ideal for a variety of activities from skiing and skating to swimming and everyday water exposure, this watch offers reliability and durability.

The stainless steel case and glass are meticulously crafted to maintain exceptional waterproof performance. The case incorporates a special O-ring gasket, providing robust waterproofing. The O-ring, placed between the center, middle frame, and case back, is compressed by the case back press, ensuring a watertight seal.

The glass, designed to endure pressures of up to 5 atmospheres (approximately 5 kg/cm2), must withstand substantial force. Seiko's Cronos luxury waterproof watches utilize extremely strong, moisture-resistant glass. The crown also features an O-ring, enhancing its waterproof capabilities and ensuring smooth operation.

The watch case is in excellent condition, displaying common signs of usage. The dial remains immaculate with minimal signs of aging, and the hands are pristine, showing no visible aging. The unsigned crown and crystal are in excellent condition with minimal hairline scratches.

This watch is presented on a brand new handmade top-grained leather strap, adding a touch of elegance to its rugged design.

Allow us to share the vital specifications of this remarkable timepiece:

- Diameter: 35mm
- Thickness: 10mm
- Lug Width: 18mm

This Seiko J13046 is not just a watch; it's a piece of horological history, exemplifying Seiko's pioneering spirit and commitment to innovation in watchmaking.